diff --git a/src/browser/PlaywrightElectronActiveActions.test.ts b/src/browser/PlaywrightElectronActiveActions.test.ts
index 63d0a5e73..9c6c204b8 100644
--- a/src/browser/PlaywrightElectronActiveActions.test.ts
+++ b/src/browser/PlaywrightElectronActiveActions.test.ts
@@ -61,6 +61,25 @@ it("rejects non-absolute deep-link values", () => {
   expect(result.success).toBe(false);
 });
 
+it("accepts any argument count while validating each argument", () => {
+  const input = electronActiveObservationInputSchema.parse({
+    executable_path: "/opt/electron",
+    application_path: "/opt/app/main.js",
+    application_root: "/opt/app",
+    args: Array.from({ length: 40 }, (_, index) => `--flag-${index}`),
+  });
+
+  expect(input.args).toHaveLength(40);
+  expect(
+    electronActiveObservationInputSchema.safeParse({
+      executable_path: "/opt/electron",
+      application_path: "/opt/app/main.js",
+      application_root: "/opt/app",
+      args: ["x".repeat(4_097)],
+    }).success,
+  ).toBe(false);
+});
+
 it("redacts action inputs from Playwright failures", async () => {
   const selector = "#secret-selector";
   const input = electronActiveObservationInputSchema.parse({
diff --git a/tests/boundary/mcp/browserScenarioMcp.test.ts b/tests/boundary/mcp/browserScenarioMcp.test.ts
index 35a7ddda3..f9de119f4 100644
--- a/tests/boundary/mcp/browserScenarioMcp.test.ts
+++ b/tests/boundary/mcp/browserScenarioMcp.test.ts
@@ -208,7 +208,7 @@ describe("browser scenario MCP tool", () => {
         ],
       },
       capture: { after_each_step: [], at_end: ["url"], events: [] },
-      limits: { max_duration_ms: 60_000, max_total_metadata_bytes: 4_194_304 },
+      limits: { max_duration_ms: 60_000 },
     });
 
     const captured = await client.callTool({
diff --git a/tests/boundary/mcp/serverIdentity.test.ts b/tests/boundary/mcp/serverIdentity.test.ts
index f6a711fa5..ec512b5a9 100644
--- a/tests/boundary/mcp/serverIdentity.test.ts
+++ b/tests/boundary/mcp/serverIdentity.test.ts
@@ -243,7 +243,7 @@ const assertLiveIdentity = async (client: Client): Promise<void> => {
     "For standalone JavaScript or ASAR analysis, use analyze_javascript_application",
   );
   expect(instructions).toContain(
-    "For an archive or application package, call open_binary(path), then inspect_artifact",
+    "For an archive or application package, open_binary(path) binds the active target; use inspect_artifact when its graph and findings help",
   );
   const identity = await client.callTool({
     name: "binary_session",
diff --git a/tests/boundary/mcp/sessionMcp.test.ts b/tests/boundary/mcp/sessionMcp.test.ts
index e2eec91a1..81b82b224 100644
--- a/tests/boundary/mcp/sessionMcp.test.ts
+++ b/tests/boundary/mcp/sessionMcp.test.ts
@@ -116,7 +116,7 @@ describe("target-free MCP workflow", () => {
     const beforeTools = (await mcp.listTools()).tools;
     const beforeNames = beforeTools.map(({ name }) => name);
     expect(mcp.getInstructions()).toContain(
-      "For an archive or application package, call open_binary(path), then inspect_artifact",
+      "For an archive or application package, open_binary(path) binds the active target; use inspect_artifact when its graph and findings help",
     );
     expect(
       beforeTools.find(({ name }) => name === "inspect_artifact")?.description,